zcash_spec is used at run time in 21 crates. It is a direct run-time dependency in 4 crates.

Depender (with downloads and own rev deps) zcash_spec version
14K 8 orchard ^0.1
10K 9 sapling-crypto ^0.1
10K 6 zip32 ^0.1.2
8.3K 15 zcash_primitives ^0.1